Effect of Different Ca Content on Microstructure and Electrochemical Performance of As-Cast AZ31 Magnesium Alloy Sacrificial Anodes
The effect of ca on the as-cast microstructure and electrochemical performance of AZ31 anode was investigated. The results show that addition of Ca to AZ31 anodes can result in not only grain refinement, but also a change in both morphology and volume fraction of the second phases. And grain refinem...
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| Veröffentlicht in: | Applied Mechanics and Materials 2013-10, Vol.431 (Mechanical Engineering, Industrial Materials and Industrial Electronics), p.42-47 |
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| container_issue | Mechanical Engineering, Industrial Materials and Industrial Electronics |
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| container_title | Applied Mechanics and Materials |
| container_volume | 431 |
| creator | Min, Guang Hui Cui, Hong Wei Du, Xiao Hong Li, Ting Bin Ding, Hong Wei |
| description | The effect of ca on the as-cast microstructure and electrochemical performance of AZ31 anode was investigated. The results show that addition of Ca to AZ31 anodes can result in not only grain refinement, but also a change in both morphology and volume fraction of the second phases. And grain refinement by Ca addition can be explained by the GRF mechanism. 0.4%Ca addition to as-cast AZ31 anode can increase the effective current capacity and current efficiency, and meet the requirements of magnesium sacrificial anode, but open circuit potential is lower than the nation standards. AZ31-0.4Ca anode will have a broad marketing application prospect. |
| doi_str_mv | 10.4028/www.scientific.net/AMM.431.42 |
| format | Article |
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The results show that addition of Ca to AZ31 anodes can result in not only grain refinement, but also a change in both morphology and volume fraction of the second phases. And grain refinement by Ca addition can be explained by the GRF mechanism. 0.4%Ca addition to as-cast AZ31 anode can increase the effective current capacity and current efficiency, and meet the requirements of magnesium sacrificial anode, but open circuit potential is lower than the nation standards. AZ31-0.4Ca anode will have a broad marketing application prospect.</description><identifier>ISSN: 1660-9336</identifier><identifier>ISSN: 1662-7482</identifier><identifier>ISBN: 3037858931</identifier><identifier>ISBN: 9783037858936</identifier><identifier>EISSN: 1662-7482</identifier><identifier>DOI: 10.4028/www.scientific.net/AMM.431.42</identifier><language>eng</language><publisher>Zurich: Trans Tech Publications Ltd</publisher><subject>Anode effect ; Anodes ; Cathodic protection ; Corrosion potential ; Current efficiency ; Efficiency ; Electrochemical analysis ; GNP ; Grain growth ; Grain refinement ; Gross National Product ; Intermetallic compounds ; Magnesium alloys ; Magnesium base alloys ; Microscopy ; Microstructure ; Morphology ; Open circuit voltage ; Phases ; Sacrificial anodes ; Solids</subject><ispartof>Applied Mechanics and Materials, 2013-10, Vol.431 (Mechanical Engineering, Industrial Materials and Industrial Electronics), p.42-47</ispartof><rights>2013 Trans Tech Publications Ltd</rights><rights>Copyright Trans Tech Publications Ltd. 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The results show that addition of Ca to AZ31 anodes can result in not only grain refinement, but also a change in both morphology and volume fraction of the second phases. And grain refinement by Ca addition can be explained by the GRF mechanism. 0.4%Ca addition to as-cast AZ31 anode can increase the effective current capacity and current efficiency, and meet the requirements of magnesium sacrificial anode, but open circuit potential is lower than the nation standards. 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The results show that addition of Ca to AZ31 anodes can result in not only grain refinement, but also a change in both morphology and volume fraction of the second phases. And grain refinement by Ca addition can be explained by the GRF mechanism. 0.4%Ca addition to as-cast AZ31 anode can increase the effective current capacity and current efficiency, and meet the requirements of magnesium sacrificial anode, but open circuit potential is lower than the nation standards. AZ31-0.4Ca anode will have a broad marketing application prospect.</abstract><cop>Zurich</cop><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/AMM.431.42</doi><tpages>6</tpages></addata></record> |
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| source | Scientific.net Journals |
| subjects | Anode effect Anodes Cathodic protection Corrosion potential Current efficiency Efficiency Electrochemical analysis GNP Grain growth Grain refinement Gross National Product Intermetallic compounds Magnesium alloys Magnesium base alloys Microscopy Microstructure Morphology Open circuit voltage Phases Sacrificial anodes Solids |
| title | Effect of Different Ca Content on Microstructure and Electrochemical Performance of As-Cast AZ31 Magnesium Alloy Sacrificial Anodes |
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